I'm guessing you mean:
Charmed Life, Major Heroic Virtue (HoH:TL, page 104)
"Fortune smiles upon you, often protecting you from the random consequences of adventure. You have the Luck virtue, and whenever you roll a 0 on a stress die in dangerous or deadly circumstances, you may spend a Confidence point to reroll it rather than checking for a botch. This should be applied in chaotic circumstances, not calculated efforts, since luck must play a factor to make use of this virtue — for example, charging into a rain of arrows or diving off a sheer cliff are appropriate actions, but not forging a letter or following a set of tracks."
Believe it or not, I know the answer because I was just yesterday browsing the old PdP campaign Unknown Cargo (En Route to Visby, near the bottom of page 1) - where Ovarwa's character used it!
You catch the tide and make way for Visby, which is a tricky bit of sailing in really poor wether, but is generally fine this time of year. If you want to start subthreads where you spend time with the passengers, that's fine, but this thread will forge ahead with the action. Did I say action? About four hours from port, a ship coming toward Lubeck starts to tack toward yours. This is perfectly normal: ships often pass lcose to each other near port to check on conditions, swap perceived loc…